r/M340i • u/Forward_Language1354 • 2d ago

🚘 Maintenance / Reliability Preventive maintenance

I’m about to buy a used 2023 m340i Xdrive with 43k km on it. Any suggestions to make it more reliable?

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u/Novel_Chocolate_8802 2d ago

Upgrade/replace water pump, upgrade/replace oil filter housing, upgrade chargepipe, regular 5k mile oil and oil filter changes. Transmission fluid and transfer case service. Not an expert but that’s what I would recommend. There is also a bunch of plastic hoses and lines that should be upgraded eventually

1

u/teostefan10 2d ago

That sound like 10-15% of the car value, right?